Resubmissions

23/03/2026, 02:00

260323-cffqcsds9n10

05/03/2026, 16:32

260305-t1xm2scx3k10

11/02/2026, 21:18

260211-z5q9qaav8h10

11/05/2025, 03:54

250511-egp2javwat10

03/09/2024, 14:02

240903-rb57sazdqf10

03/09/2024, 13:51

240903-q59avszclf10

02/09/2024, 19:51

240902-yk8gtsxbpd10

02/09/2024, 02:27

240902-cxh7tazflg10

02/09/2024, 02:26

240902-cwxc2sygll10

21/06/2024, 19:37

240621-yca7cszgnd10

Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/03/2026, 02:00

General

  • Target
    Trojan/SmokeLoader.exe
  • Size 251KB
  • Sample260323-cffqcsds9n
  • SHA256 30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2019

C2
  • http://advertserv25.world/logstatx77/

  • http://mailstatm74.club/logstatx77/

  • http://kxservx7zx.club/logstatx77/

  • http://dsmail977sx.xyz/logstatx77/

  • http://fdmail709.club/logstatx77/

  • http://servicestar751.club/logstatx77/

  • http://staradvert9075.club/logstatx77/

  • http://staradvert1883.club/logstatx77/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Smokeloader family
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe
    "C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1372

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        D47F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\D47F.tmp
        • Size 1.6MB
        • SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1240-2-0x0000000000A10000-0x0000000000A1B000-memory.dmp

        memory/1240-1-0x0000000000BB0000-0x0000000000CB0000-memory.dmp

        memory/1372-3-0x0000000000400000-0x000000000040A000-memory.dmp

        memory/1372-4-0x0000000000400000-0x000000000040A000-memory.dmp

        memory/1372-10-0x0000000000400000-0x000000000040A000-memory.dmp

        memory/1372-12-0x0000000002000000-0x00000000025B3000-memory.dmp

        memory/3264-8-0x00000000031A0000-0x00000000031A1000-memory.dmp

        memory/3264-9-0x0000000003180000-0x0000000003196000-memory.dmp

        memory/3264-13-0x0000000003180000-0x0000000003196000-memory.dmp